Drew most of this one out on paper. One room has four different looks, at each phase of the level it will change. Depending on what secrets you find, the ending can play quite differently. My first DCK level.

This is dated March 1995. It's a pretty good library / dungeon-style map in a classical Doom II style. You fight 193 baddies and it's never hard although there's one tense archvile/cyberdemon fight, and it's not a walkover either. It's particularly notable for some good "transforming scenery" effects, with a winding corridor and some simple but effective stairs that fall into the floor.